Elevator door



Aug. 23, A1932. H, R, GRABLE 1,873,574

' ELEVATOR DOOR Filed Feb. 17, 1930 s-sheets-sneet 1 gwn/vento@ g2 HZ.@fable Fig H. R. GRABLE ELEvAToR DooR Filed Feb. 17. 1930 3 Sheets-Sheet2 Q m m\ N M n n ma 1 I l, v w l., MN MW f NN @s mm1 n mw 2Q Y W m JON yQNX )QN MN RN H. R. GRABLE `ELEVATOR DoQR Aug. 23, 1932.

Filed Feb. 17, 1950 3 Sheets-Sheet 5 El?. gr/

TW Wag@ www 20 crushed bythe moving Patented Aug. 23, 1932 HUGH n.Gamme, orfautronpnroj nnnvnzron :Doon j slichslare ingeneraluse insmall:apartmentV buildings.and similar places.

'if' Y ltihasbeen found by experience that.` chilf` dren have Ibeen.requentlykilled or seriously in-j uned .byplayngin ora-roundl sel-ffoperated elenators. Particularly. in apartment lhouses it is`eustolnaryffi' Clldren to .enterV these elevatorsin .theirplay ,and it`often happens that a child is in the elevator. car when :a personxon ahigher or. loweriloor preSSes --the bilitml` towhringftheaeleuator .upor down as thecase. maybe.

When the car starts inggfrightenedywill jump from thefloerolflthe carto.the doorsillandattempt to lopen the door. and yescape hutzoftenyisl.trapped .-.and canbefore bengalole toopenzthe door. l v

'lheebieet of the.presentdinproveinents,to prouidea safetydevice whichentirelyscovers the .door jsill and `prevents ,the `child `'from i y,g55Ajuinping romthe .moving ncar onto the sill;

and .whichissorconstructed that any. attempt,

by the child, to jump onto the sill will throw backward into thecarwhere he y will remain-unharmed. l

A. furtherv object .is to provide suchade.- viceadapted fonuse uponplural; section Islid? ingdoersand e0 Censtructedasto accomplishits'fpurpose fwithout interfering with the-nor:V mal voperation of thedoors.

The `aboveand other, objects may beg-accomplished by. lprevidinglinclined baille platesat thelower portions ofthe doorsections,arvranged, to extend .over and cover 4the ydoor sillwhen thefdoor isinclosed-position, one

gfysaidbaliie plates ibeng hinged and/.means being. providedor swingingsaid .ibaiile plate inward, upon its hinge joint, 'to permitit to,clearthehailleplate upon the other door section, I.Wlmnthedoor sopened.v

1.4.5 Otherob'jects will be hereinafter pointed out orwill-heohviousroni thei'ollowingdetailed description of the inventionand the' illustration. thereof; in thev accompanying drawingsin ,which li i Figure f1 isan elevation ofan elevatordoor provided with theimprpved, safety device Ito which theinvention pertains, taken from ,theinside of' `,the elevator` car .and Ashowing the door in closedposition;` j

Fig. 2, a fragmentaryelevation of thelower inside .portions of lthesliding door. sections, showing thedoorinftheopen position; f Fig. 3,.anedge vievs7 y ofthe lower vportion of t-he door. section providedwit-hf-the sta.- tionarjyl -loattle plate showing the mechanism forloperating `thehinged :baille plateuponthe other doorsection; Y lj i ,l lig, :4, asimilar View. of both. door sections showing, the door inlClosed position;

.,.Fig.c5, -a-.view similanto Fig. f l,showing the doorsdnltheopennggposition;

` Fig. 6, an .enlargedfragmentaryg elevation of vthev lower vportions ofthetwodoorsections, showing the same in closed position, parts` being abroken away to illustrate ithe l mechanism; Y Y

, Fig, 7, `a similar viewshowingthe position of .themeehanism asthe;door. starts to open and f VVllli'g. 8anzenlarged-detailperspective-,view of the-cam `whichoperatesti-the hinged baille Plate. H

Y Similar numeralsgrefer: 'to similar .parts Y throughout-the drawings.Y

The door to which the invention is adapted is f ofaithe .slidingisection; type and vmav cemprise `the-sections .1:0 and 11, 1looth'adapted to beislidahly movedto the rightas1v1ewe.d1n Fig; 1, as bymeans ofthegoperatingbar 12, of usual constituction,-'A the sectionllmovingl substantially ltwiceas fast as the section 1 0whenopeningorclosingf l :'Theusualsilll 's located" at the elevatorlandingA directly beneath the doors andthe inner edge portion thereoflextends into the The usual grooves may be formed in the top surface ofthe sill to receive the depending studs 16 at the lower ends of thevdoors in order to guide the doors as they slide to open or closedposition, it being understood that the doors are lsuspended from.hangers of any usual and Well known construction.

' A downwardly and inwardly inclined baf- Y fle plate 17 islocated `atthe lower portionof the door section 11 having the flange 18 at itsupperY edge for connection to the -inner tace of the door section andthehorizontal lower flange 19 for connectionV to the'doorI section. 1 j

As best shown in Fig. 3, it will be seen that this baiiie plate extends.over theA sill': to sub-r` stantially the inner edge thereof,fpreventingajpe'rson from standing upon thev'sill when the door is closed.` Y

lThe door section 10 has an end plate 2O xed to theedge portion'thereofaway fromr the section 11, asb'yth'e" screws 21 andan angle Ybrace22 isfixedto this end plate and supports one end of theangle iron 23 whichextends substantially across the width `of the door .section 10 spacedvtherefrom as best vshown in Figs. 4` and 5.

An upturned'l'ange24 is fixed' to the inner end portion of the 'angleiron 23 and slidably engages the angle iron 25 which may be weldedorjotherwise attached to thev under side of the horizontal iiange 19.ofthe baiile plate17. i TheI baille plate 26 Vis hinged at itsy loweredge as at 27 to the angle iron 23 and is inyclined'inward and upward atVsubstantially the same angle as the baiile plate 17 upon'the doorsection 11, the upper portion of vthe hinged baliie plate being inclinedtoward the door section 10 at la greater angle, las `rindicated at 28,and havingthe angular liange 29 at vits upper edge adapted to restagainst the rail 30 upon the doorsection 10, when' the door is in theclosed position and adapted to slidably engage the rail 31 upon the doorsection. 11 vas the'door moves to the open posi-l tion. 1

AS 'best Shown in Fig. 4, this hingedbame plate normally extends overthe portion of the sill directlyadjacent to the door section 10 and 1sdownwardlyl inclined so as to prevent a person from stepping upon thisportion fof thesilLJv 'VAs shown in the drawings, the'hinged baf- Vieplate"V is notchedas at 32 at its uppercorner adjacentfto the door.section 11v for a purpose to be hereinafter described".VU

" Means rare provided to swingthe hinged Y baiiie plate26 away fromthedoor section 10, when thedoor starts to open, in order to'permit thedoor section '11 Vand vbaille plate 17 carri `d thereby` to` slidably`norvefacross the inner face of the door section 10. Y l

A cam lug 36 is fixed to the free end ofthe lever 33, the other endthereof being provided Y Y with an elongated slot 37 engaged by a pin 38carried by the upper end of the operating lever 39 which is fulcrumedintermediate itsV i ends as at 40,'upon the .plate35 and provided Vatits lower end with `thecurved`lug 141 :adapt- Yed to normally protrudeinto the aperture 42 `in thesill when the door sectionsarein closedposition, thespring 43 being connected to the .lower portion of thelever'39 and to a stud 44 uponthe plate 35, for normally holding theparts-infthisposition.I Y Y The free end portion ,of .the lever 33y isadapted toslid'e between the plate 35 guidebracket 45carriedthereby'. Acurved cam plate46 is iixed totheinner side ofthe hinged 'baiiieplatanear the end thereof toward the door. section 11 and adapfted't'ol beengaged byV the :cam lug '36 upon thelever l33. In the operation of thedevice, as the door is openedby means of the operating bar'12",

the door sections 10 and'll will both beslidf ably moved towardv theright, as' viewed in Fig. 1, the sectionllrmoving atagreatersp'eed thanthe section l0.

The adjacent end portionof thebaili'e plate 17 will ride into thenot'ch32 'of the hinged 'baille plate 4as the door y section'fllfV'Starts' fc', overlap the section`10; j '2 The operatinglever 39 :will

36 against theJ curved surface'ofth'ecamplate y I bejr Y the positionshown in Fig.,7 as the curved lug `nies 46, 'asshown in Figs.'5and 7,Swinging the hinged baiiie plate outward* so yas to clear thedoorsection ll'fandthe fixed baiile a thereon.'

Further movement of the' door) section-11 j relative to the section 10will move 'the Vvcam lug 36Kbeyond'the cam plat'e46, Vpermitting thehingedbaiilefplate to 'drop back'toward the door section 11, theupperfflange '29the`r`e ,Of'slidably riding uponthel'rail'y 31ionthedoor section 11. n y 1 Y 1 As the door is moved'back to'aclosedposition, the cam lugf36fwill again engage theicam plate 46 "and thenridefoii'of the 'saineypeiY mitting the hinged baille plate to dropyback against' the door section 1U while the levers 33andf39 will assumethe lnormal position shown in Fig. 6 as the door reaches/,the fullyclosed position. f Y l From the above it will be, obvious'that'the sillis completely covered when the dooris in closed position, thuspreventing anyone from stepping from the floor of the elevator car ontothe sill.

Should a child attempt to step upon the sill, the inclined baiiie plateswill cause him to slide backward into the elevator car without danger ofserious injury such as might be caused if he remained upon the sill andwas unable to get the door opened before the car ascended or descended.

I claim:

1. In an elevator shaft having a door opening, a sill at the bottoni ofthe door opening, a door in said opening comprising relatively slidabledoor sections, inclined baiile plates at the lower portions of the doorsections and extending across the still when the door is closed, one ofsaid baiiie plates being hingedly connected to the corresponding doorsection and arranged to slide over the other door section when the dooris opened, and mea-ns for swinging said hinged battle plate away fromthe ,door when the dooris opened.

2. In an elevator shaft having a door opening, a sill at the bottom ofthe door opening, a door in said opening comprising relatively slidabledoor sections, inclined baffle plates at the lower portions of the doorsections and extending across the sill when the door is closed, one ofsaid baffle plates being hingedly connected to the corresponding doorsection and arranged to slide over the other door section when the dooris opened, and means upon the other door section for swinging saidhinged baffle plate away from theV door when the door is opened. y

8. In an elevator shaft having a door opening, a sill at the bottom ofthe door opening, a door in said opening comprising relativelyslidabledoor sections, inclined baffle plates at the lower portions ofthe door sections and extending across the sill when the door is closed,one of said batlie plates being hingedly connected to the correspondingdoor section and arranged to slide over the other door section when thedoor is opened, and a lever upon the other door section for swingingsaid hinged baiile plate away from the door when the door is opened.

4. In an elevator shaft having a door opening, a sill at the bottom ofthe door opening, a door in said opening comprising relatively slidabledoor sections, inclined baffle plates at the lower portions of the do-orsec-` tions and extending across the sill when the door is closed, oneof said baffle plates being hingedly connected to the corresponding doorsection and arranged to slide over the other door section when the dooris opened, and a cam upon the other door section for swinging saidhinged baffle plate away from the door when the door is opened.

5. In an elevator shaft having a door opening, a sill at the bottom ofthe door opening, a door in said opening comprising reladoor section andarranged to slide over `theother door section when the door is opened,and a cam lever upon the other door section for swinging said hingedbaiiie plate away from the door when the door is opened.

In testimony that I claim the above, I-

have hereunto subscribed my name.

HUGH R. GRABLE.

l ico

